fluorinerocket

6 ms·

1.
by fluorinerocket 9d ago
Terrible explanation
2.
by fluorinerocket 2mo ago
Why don't the "In my country" posters ever name the country
3.
by fluorinerocket 3mo ago
I am certainly in the minority and I do live with it. Things like motion sensor lights, faucets that turn off so quickly that you have to hold your hands in weird position to wash them, 1.6 gallon flush toilets are all completely avoidable
4.
by fluorinerocket 3mo ago
Yes there are a bunch of terrible ideas in this thread. Video camera controlled lights? Yes f privacy of everyone to save a few bucks? well I think that was sarcastic Motion controlled lights are always timed badly, incredibly annoying to h
5.
by fluorinerocket 3mo ago
Can we please ban university press releases
6.
by fluorinerocket 5mo ago
Statecharts are one of the those concepts that are extremely useful for machine control that it seems crazy to me that they are so little adopted from what I have seen. At most people might know about a flat mealy state machine. What's
7.
by fluorinerocket 5mo ago
There were so many things that NI did that were great. Debugging in LabVIEW was also very easy with probes, conditional breakpoints etc. It's really too bad that it's more or less dead now
8.
by fluorinerocket 5mo ago
I am sure they each personally researched the topic very thoroughly to come to this conclusion
9.
by fluorinerocket 5mo ago
What if they have a bunch of prerecorded data for the guys heart, then use a lock in amplifier to see if there is a signal in the noise https://en.wikipedia.org/wiki/Lock-in_amplifier
10.
by fluorinerocket 6mo ago
You're right but still, big error. I get its averaging over the range, and the floats are not uniformly distributed. Maybe the thing to optimize the expression for is the minimize the maximum error, and not the average error. I think t
11.
by fluorinerocket 6mo ago
You're right I misread the graph. That said though I have played around with Herbie before, trying it out on a few of the more gnarly expressions I had in my code (analytical partial derivatives if equations of motion if launch vehicle
12.
by fluorinerocket 6mo ago
How useful is this when you are using numbers in a reasonable range, like 10^-12 to 10^12? Generally I try to scale my numbers to be in this range, whether by picking the right units or scaling constraints and objectives when doing nonlinea
13.
by fluorinerocket 8mo ago
The rocket company I worked at designed their orbital rocket in inches and lbm. Engine flow rates in lbm/s, temperatures in deg Rankine, thrust in lbf. Btu/hour/inch^2/degR heat transfer coefficients.
14.
by fluorinerocket 8mo ago
I miss fuckedcompany.com
15.
by fluorinerocket 8mo ago
How is that working out, genuinely curious
16.
by fluorinerocket 9mo ago
I don't think they even had a way to do dc-dc voltage step-up and step-down at high power and efficiency, needed semiconductors for that to do high speed switching in buck and boost converters
17.
by fluorinerocket 9mo ago
Awesome, I learned something about optics! I was afraid this was going to be about Haskell
18.
by fluorinerocket 9mo ago
I haven't ever experienced this yet, what packages were involved?
19.
by fluorinerocket 9mo ago
LabVIEW FPGA was amazing, I did all kinds of things with it on the compactRIO controller FPGA You can write very neat and tidy code with dataflow diagram languages. I did it professionally for years, and there were many others who did as we
20.
by fluorinerocket 9mo ago
They like to say things like that or some version of "we want to teach the concepts, the specific technology changes too fast". Does it? Just seems lazy to me.
21.
by fluorinerocket 9mo ago
I on the other hand can't stand PDFs. They take up valuable screen space, it is annoying to scroll to the sections you need. Yeah yeah some PDFs have the side navigation thing. Most don't With a book I can put in those little flag
22.
by fluorinerocket 9mo ago
Rockets have flown to orbit on auto coded simulink, seen it myself
23.
by fluorinerocket 10mo ago
Would love to see a language in which hierarchical state machines, math/linear algebra, I/O to sensors and actuators, and time/timing were first class citizens. Mainly for programming control systems for robotics and aerospac
24.
by fluorinerocket 10mo ago
When I was a kid in Italy in the late 80s early 90s the elentary school teachers also did "interrogazione" at the blackboard. That is individual kids would go up to the blackboard and get asked questions front of the rest of the c
25.
by fluorinerocket 10mo ago
So 12% of the population pays it? So more of a tax on the professional, works for a living, upper middle class?
26.
by fluorinerocket 10mo ago
Clear case on the terminal blocks could be nice, though might still get a bit tough to see when you have multi-level TBs all mounted in strip on DIN rail. When I used to be involved in control panels I would always yank on all the wires too
27.
by fluorinerocket 10mo ago
Yes I didn't realize anyone actually did anything numerical without numpy. I don't think I've ever imported python's math module once. Who in their right mind is making a 1e6 long python list
28.
by fluorinerocket 10mo ago
I still hate screw terminal blocks. Spring terminals + ferrules are still the way.
29.
by fluorinerocket 10mo ago
I just revised Matlab to do some work involving a simulation and Kalman filter, and after years of using python I found the experience so annoying that I really welcome this library.
30.
by fluorinerocket 11mo ago
Lawyers and doctors act to protect their profession and prevent getting replaced by an AI.

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